EP1326858A2 - Nouveaux composes non imidazole - Google Patents

Nouveaux composes non imidazole

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Publication number
EP1326858A2
EP1326858A2 EP01983968A EP01983968A EP1326858A2 EP 1326858 A2 EP1326858 A2 EP 1326858A2 EP 01983968 A EP01983968 A EP 01983968A EP 01983968 A EP01983968 A EP 01983968A EP 1326858 A2 EP1326858 A2 EP 1326858A2
Authority
EP
European Patent Office
Prior art keywords
compound
alkyl
mmol
substituted
formula
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01983968A
Other languages
German (de)
English (en)
Other versions
EP1326858B1 (fr
Inventor
Robert G. Aslanian
Neng-Yang Shih
Pauline C. Ting
Michael Y. Berlin
Stuart B. Rosenblum
Kevin D. Mc Cormick
Wing C. Tom
Christopher W. Boyce
Pietro Mangiaracina
Mwangi Wa Mutahi
John J. Piwinski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck Sharp and Dohme Corp
Original Assignee
Schering Corp
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Filing date
Publication date
Application filed by Schering Corp filed Critical Schering Corp
Priority to SI200130466T priority Critical patent/SI1326858T1/sl
Priority to EP05009405A priority patent/EP1571145B1/fr
Publication of EP1326858A2 publication Critical patent/EP1326858A2/fr
Application granted granted Critical
Publication of EP1326858B1 publication Critical patent/EP1326858B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72—Nitrogen atoms
    • C07D213/73—Unsubstituted amino or imino radicals
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    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
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    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/445—Non condensed piperidines, e.g. piperocaine
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    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
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    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/04—Inotropic agents, i.e. stimulants of cardiac contraction; Drugs for heart failure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
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    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D498/04—Ortho-condensed systems

Definitions

  • WO99/24405 published May 20, 1999 discloses H 3 receptor ligands of the imidazole type.
  • the present invention provides novel compounds of structure I.
  • R is selected from: (a) aryl;
  • halogen e.g., Br, F, or CI, preferably F or CI
  • hydroxyl i.e., -OH
  • lower alkoxy e.g., Ci to C 6 alkoxy, preferably Ci to C 4 alkoxy, most preferably Ci to C 2 alkoxy, more preferably methoxy
  • each R 4 is the same or different;
  • M 2 is selected from C or N;
  • M 3 and M 4 are independently selected from C or N;
  • Z is a Ci - C 6 alkyl group
  • R 2 is a five or six-membered heteroaryl ring, said six-membered heteroaryl ring comprising 1 or 2 nitrogen atoms with the remaining ring atoms being carbon, and said five-membered heteroaryl ring containing 1 or 2 heteroatoms selected from: nitrogen, oxygen, or sulfur with the remaining ring atoms being carbon; said five or six membered heteroaryl rings being optionally substituted with 1 to 3 substituents independently selected from: halogen, hydroxyl, lower alkyl, lower alkoxy, -CF 3 , CF 3 O-, -NR 4 R 5 , phenyl, -NO 2 , -CO 2 R 4 , -CON(R 4 ) 2 wherein each R 4 is the same or different, -CH 2 NR 4 R 5 , -(N)C(NR R 5 ) 2 , or-CN; (10) R 3 is selected from:
  • arylalkyl e.g., aryl(C ⁇ to C )alkyl, e.g., -(CH 2 )waryl wherein w is 1 to 4, preferably 1 or 2, and most preferably 1 , such as, for example -CH 2 phenyl or -CH 2 substituted phenyl;
  • R 30 is a heterocycloalkyl group, such as, for example, morpholinyl, piperidinyl, piperazinyl or pyrrolidinyl, including
  • R 4 is selected from: hydrogen, Ci - C 6 alkyl, aryl, alkylaryl, said aryl and alkylaryl groups being optionally substituted with 1 to 3 substituents selected from: halogen, -CF 3 , -OCF 3 , -OH, -N(R 45 ) 2 , -CO 2 R 45 , -C(O)N(R 45 );>, or-CN; wherein R 45 is as defined above;
  • R 5 is selected from: hydrogen, Ci - C 6 alkyl, -C(O)R 4 , -C(O) 2 R 4 , or -C(O)N(R 4 ) 2 wherein each R 4 is independently selected, and R 4 is as defined above;
  • R 4 and R 5 taken together with the nitrogen atom to which they are bound forms a five or six membered heterocycloalkyl ring (e.g., morpholine);
  • R 6 is selected from: alkyl, aryl, alkylaryl, halogen, hydroxyl, lower alkoxy,
  • each R 4 is the same or different, or -CN;
  • R 12 is selected from: alkyl, hydroxyl, alkoxy, or fluoro;
  • R 13 is selected from: alkyl, hydroxyl, alkoxy, or fluoro; (17) a (subscript for R 12 ) is 0 to 2;
  • (20) e is 0 to 5;
  • p is 1 , 2 or 3, with the proviso that when M 3 and M 4 are both nitrogen, then p is 2 or 3 (i.e., p is not 1 when M 3 and M 2 are both nitrogen).
  • This invention also provides a pharmaceutical composition
  • a pharmaceutical composition comprising an effective amount of compound of Formula I, and a pharmaceutically acceptable carrier.
  • This invention further provides a method of treating: allergy, allergy-induced airway (e.g., upper airway) responses, congestion (e.g., nasal congestion), hypotension, cardiovascular disease, diseases of the Gl tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, obesity, sleeping disorders (e.g., hypersomnia, somnolence, and narcolepsy), disturbances of the central nervous system, attention deficit hyperactivity disorder ADHD), hypo and hyperactivity of the central nervous system (for example, agitation and depression), and other CNS disorders (such as Alzheimer's, schizophrenia, and migraine) comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I.
  • congestion e.g., nasal congestion
  • hypotension e.g., cardiovascular disease
  • diseases of the Gl tract e.g., hyper and hypo motility and acidic secretion of the gastro-intestinal tract
  • obesity sleeping disorders
  • This invention further provides a method of treating: allergy comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I.
  • a patient in need of such treatment e.g., a mammal, such as a human being
  • This invention further provides a method of treating: allergy-induced airway (e.g., upper airway) responses comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I.
  • a patient in need of such treatment e.g., a mammal, such as a human being
  • This invention further provides a method of treating: congestion (e.g., nasal congestion) comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I.
  • congestion e.g., nasal congestion
  • This invention further provides a pharmaceutical composition comprising an effective amount of a compound of Formula I, and an effective amount of a Hi receptor antagonist in combination with a pharmaceutically acceptable carrier.
  • This invention further provides a method of treating: allergy, allergy-induced airway (e.g., upper airway) responses, and congestion (e.g., nasal congestion) comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I in combination with an effective amount of an _ receptor antagonist.
  • a patient in need of such treatment e.g., a mammal, such as a human being
  • an effective amount of a compound of Formula I in combination with an effective amount of an _ receptor antagonist.
  • This invention further provides a method of treating: allergy comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I in combination with an effective amount of an Hi receptor antagonist.
  • a patient in need of such treatment e.g., a mammal, such as a human being
  • an effective amount of a compound of Formula I in combination with an effective amount of an Hi receptor antagonist.
  • This invention further provides a method of treating: allergy-induced airway (e.g., upper airway) responses comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I in combination with an effective amount of an Hi receptor antagonist.
  • a patient in need of such treatment e.g., a mammal, such as a human being
  • an effective amount of a compound of Formula I in combination with an effective amount of an Hi receptor antagonist.
  • This invention further provides a method of treating: congestion (e.g., nasal congestion) comprising administering to a patient in need of such treatment (e.g., a mammal, such as a human being) an effective amount of a compound of Formula I in combination with an effective amount of an Hi receptor antagonist.
  • congestion e.g., nasal congestion
  • a patient in need of such treatment e.g., a mammal, such as a human being
  • an effective amount of a compound of Formula I in combination with an effective amount of an Hi receptor antagonist.
  • heterocycloalkyl represents a saturated, carbocylic ring containing from 3 to 15 carbon atoms, preferably from 4 to 6 carbon atoms, which carbocyclic ring is interrupted by 1 to 3 hetero groups selected from -O-, -S- or - NR 40 - wherein R 40 represents Ci to C 6 alkyl, arylalkyl, -C(O)R 4 , -C(O)OR 4 , or -C(O)N(R 45 ) 2 (wherein R 45 is as defined above, and each R 45 is independently selected); examples include but are not limited to 2- or 3-tetrahydrofuranyl, 2- or 3- tetrahydrothienyl, 2-, 3- or 4- piperidinyl, 2- or 3-pyrrolidinyl, 2- or 3-piperizinyl, 2- or 4-dioxanyl, 1 ,3-dioxolanyl, 1 ,3,5-trithianyl, pentamethylene sulfide
  • (1) (2) (3) wherein (1) represents a mixture of oxime isomers; (2) represents one geometric isomer of the oxime wherein the -OR 3 group is on the same side of the double bond as the group to the left of the carbon atom; (3) represents one geometric isomer of the oxime wherein the -OR 3 group is on the same side of the double bond as the group to the right of the carbon atom; and (1) can also be represented as:
  • N C— NR 4 R 5
  • NaBH(OAc) 3 represents sodium triacetoxyborohydride
  • TEMPO represents 2,2,6,6-tetramethyM-piperidinyloxy, free radical ;
  • upper airway usually means the upper respiratory system-i.e., the nose, throat, and associated structures.
  • effective amount generally means a therapeutically efffective amount. Lines drawn into the rings indicate that the indicated bond may be attached to any of the substitutable ring carbon atoms.
  • Certain compounds of the invention may exist in diffferent isomeric (e.g., enantiomers, diastereoisomers and geometric) forms.
  • the invention contemplates all such isomers both in pure form and in admixture, including racemic mixtures. Enol forms are also included.
  • the compounds of this invention are ligands for the histamine H 3 receptor.
  • the compounds of this invention can also be described as antagonists of the H 3 receptor, or as H 3 antagonists.
  • the compounds of the invention are basic and form pharmaceutically acceptable salts with organic and inorganic acids.
  • suitable acids for such salt formation are hydrochloric, sulfuric, phosphoric, acetic, citric, oxalic, malonic, salicylic, malic, fumaric, succinic, ascorbic, maleic, methanesulfonic and other mineral and carboxylic acids well known to those skilled in the art.
  • the salts are prepared by contacting the free base form with a sufficient amount of the desired acid to produce a salt in the conventional manner.
  • the free base forms may be regenerated by treating the salt with a suitable dilute aqueous base solution such as dilute aqueous sodium hydroxide, potassium carbonate, ammonia and sodium bicarbonate.
  • the free base forms differ from their corresponding salt forms somewhat in certain physical properties, such as solubility in polar solvents, but the salts are otherwise equivalent to their corresponding free base forms for purposes of this invention.
  • the compounds of Formula I can exist in unsolvated as well as solvated forms, including hydrated forms, e.g., hemi-hydrate.
  • solvated forms including hydrated forms, e.g., hemi-hydrate.
  • pharmaceutically acceptable solvents such as water, ethanol and the like are equivalent to the unsolvated forms for purposes of the invention.
  • the compounds of this invention can be combined with an Hi receptor antagonist (i.e., the compounds of this invention can be combined with an Hi receptor antagonist in a pharmaceutical composition, or the compounds of this invention can be administered with Hi receptor antagonist).
  • Hi receptor antagonist activity Numerous chemical substances are known to have histamine Hi receptor antagonist activity. Many useful compounds can be classified as ethanolamines, ethylenediamines, alkylamines, phenothiazines or piperidines.
  • Representative Hi receptor antagonists include, without limitation: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine (also known as SCH-34117), diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin,
  • said Hi receptor antagonist is selected from: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine, diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin, noberastine, norastemizole, picumast, pyrilamine, promethazine, terfenadine, tripelennamine, warmth
  • said Hi receptor antagonist is selected from: astemizole, azatadine, azelastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, carebastine, descarboethoxyloratadine, diphenhydramine, doxylamine, ebastine, fexofenadine, loratadine, levocabastine, mizolastine, norastemizole, or terfenadine.
  • said Hi receptor antagonist is selected from: azatadine, brompheniramine, cetirizine, chlorpheniramine, carebastine, descarboethoxyloratadine (also known as SCH- 34117), diphenhydramine, ebastine, fexofenadine, loratadine, or norastemizole.
  • said Hi receptor antagonist is loratadine.
  • said Hi receptor antagonist is descarboethoxyloratadine.
  • said Hi receptor antagonist is fexofenadine.
  • said Hi receptor antagonist is cetirizine.
  • allergy-induced airway responses are treated.
  • allergy is treated.
  • nasal congestion is treated.
  • the Hi antagonist is selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine. Most preferably the Hi antagonist is loratadine or descarboethoxyloratadine.
  • the antagonists can be administered simultaneously, consecutively (one after the other within a relatively short period of time), or sequentially (first one and then the other over a period of time). In general, when the antagonists are administered consecutively or sequentially, the H 3 antagonist of this invention (compound of Formula I) is administered first.
  • one emodiment of this invention is directed to a pharmaceutical composition
  • a pharmaceutical composition comprising an effective amount of Compound 32 and a pharmaceutically acceptable carrier.
  • Another emodiment of this invention is directed to a pharmaceutical composition
  • a pharmaceutical composition comprising an effective amount of Compound 54 and a pharmaceutically acceptable carrier.
  • Another emodiment of this invention is directed to a pharmaceutical composition
  • a pharmaceutical composition comprising an effective amount of Compound 55 and a pharmaceutically acceptable carrier.
  • Another emodiment of this invention is directed to a pharmaceutical composition comprising an effective amount of Compound 253A and a pharmaceutically acceptable carrier.
  • Another emodiment of this invention is directed to a pharmaceutical composition comprising an effective amount of Compound 287 and a pharmaceutically acceptable carrier.
  • Another emodiment of this invention is directed to a pharmaceutical composition
  • a pharmaceutical composition comprising an effective amount of Compound 320 and a pharmaceutically acceptable carrier.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, congestion, hypotension, cardiovascular disease, hypotension, diseases of the Gl tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, obesity, sleeping disorders, disturbances of the central nervous system, attention deficit hyperactivity disorder, hypo and hyperactivity of the central nervous system, Alzheimer's disease, schizophrenia, and migraine comprising administering to a patient in need of such treatment an effective amount of Compound 32.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, congestion, hypotension, cardiovascular disease, hypotension, diseases of the Gl tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, obesity, sleeping disorders, disturbances of the central nervous system, attention deficit hyperactivity disorder, hypo and hyperactivity of the central nervous system, Alzheimer's disease, schizophrenia, and migraine comprising administering to a patient in need of such treatment an effective amount of Compound 54.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, congestion, hypotension, cardiovascular disease, hypotension, diseases of the Gl tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, obesity, sleeping disorders, disturbances of the central nervous system, attention deficit hyperactivity disorder, hypo and hyperactivity of the central nervous system, Alzheimer's disease, schizophrenia, and migraine comprising administering to a patient in need of such treatment an effective amount of Compound 55.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, congestion, hypotension, cardiovascular disease, hypotension, diseases of the Gl tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, obesity, sleeping disorders, disturbances of the central nervous system, attention deficit hyperactivity disorder, hypo and hyperactivity of the central nervous system, Alzheimer's disease, schizophrenia, and migraine comprising administering to a patient in need of such treatment an effective amount of Compound 253A.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, congestion, hypotension, cardiovascular disease, hypotension, diseases of the Gl tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, obesity, sleeping disorders, disturbances of the central nervous system, attention deficit hyperactivity disorder, hypo and hyperactivity of the central nervous system, Alzheimer's disease, schizophrenia, and migraine comprising administering to a patient in need of such treatment an effective amount of Compound 287.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, congestion, hypotension, cardiovascular disease, hypotension, diseases of the Gl tract, hyper and hypo motility and acidic secretion of the gastro-intestinal tract, obesity, sleeping disorders, disturbances of the central nervous system, attention deficit hyperactivity disorder, hypo and hyperactivity of the central nervous system, Alzheimer's disease, schizophrenia, and migraine comprising administering to a patient in need of such treatment an effective amount of Compound 320.
  • Another embodiment of this invention is directed to a method of treating allergy-induced airway responses comprising administering to a patient in need of such treatment an effective amount of Compound 32.
  • Another embodiment of this invention is directed to a method of treating allergy-induced airway responses comprising administering to a patient in need of such treatment an effective amount of Compound 54.
  • Another embodiment of this invention is directed to a method of treating allergy-induced airway responses comprising administering to a patient in need of such treatment an effective amount of Compound 55.
  • Another embodiment of this invention is directed to a method of treating allergy-induced airway responses comprising administering to a patient in need of such treatment an effective amount of Compound 253A.
  • Another embodiment of this invention is directed to a method of treating allergy-induced airway responses comprising administering to a patient in need of such treatment an effective amount of Compound 287.
  • Another embodiment of this invention is directed to a method of treating allergy-induced airway responses comprising administering to a patient in need of such treatment an effective amount of Compound 320.
  • Another embodiment of this invention is directed to a method of treating allergy or nasal congestion comprising administering to a patient in need of such treatment an effective amount of Compound 32.
  • Another embodiment of this invention is directed to a method of treating allergy or nasal congestion comprising administering to a patient in need of such treatment an effective amount of Compound 54.
  • Another embodiment of this invention is directed to a method of treating allergy or nasal congestion comprising administering to a patient in need of such treatment an effective amount of Compound 320.
  • Another embodiment of this invention is directed to a pharmaceutical composition comprising an effective amount of Compound 32, and an effective amount of Hi receptor antagonist, and a pharmaceutically effective carrier
  • Another embodiment of this invention is directed to a pharmaceutical composition comprising an effective amount of Compound 54, and an effective amount of H receptor antagonist, and a pharmaceutically effective carrier.
  • Another embodiment of this invention is directed to a pharmaceutical composition comprising an effective amount of Compound 55, and an effective amount of Hi receptor antagonist, and a pharmaceutically effective carrier.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 54 in combination with an effective amount of an Hi receptor antagonist.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of a Compound 55 in combination with an effective amount of an Hi receptor antagonist.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy- induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 253A in combination with an effective amount of an H receptor antagonist.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 287 in combination with an effective amount of an Hi receptor antagonist.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 320 in combination with an effective amount of an Hi receptor antagonist.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 32 in combination with an effective amount of an Hi receptor antagonist selected from: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine, diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin, noberastine, norastemizole, picumast,
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 54 in combination with an effective amount of an Hi receptor antagonist selected from: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine, diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin, noberastine, norastemizole, picumast,
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 55 in combination with an effective amount of an Hi receptor antagonist selected from: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine, diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin, noberastine, norastemizole, picumast,
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 253A in combination with an effective amount of an Hi receptor antagonist selected from: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine, diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin, noberastine, norastemizole, picumast
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 287 in combination with an effective amount of an Hi receptor antagonist selected from: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine, diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin, noberastine, norastemizole, picumast,
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 320 in combination with an effective amount of an Hi receptor antagonist selected from: astemizole, azatadine, azelastine, acrivastine, brompheniramine, cetirizine, chlorpheniramine, clemastine, cyclizine, carebastine, cyproheptadine, carbinoxamine, descarboethoxyloratadine, diphenhydramine, doxylamine, dimethindene, ebastine, epinastine, efletirizine, fexofenadine, hydroxyzine, ketotifen, loratadine, levocabastine, meclizine, mizolastine, mequitazine, mianserin, noberastine, norastemizole, picumast,
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 32 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 54 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 55 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 253A in combination with an effective amount of an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 287 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 320 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • an Hi receptor antagonist selected from: loratadine, descarboethoxyloratadine, fexofenadine or cetirizine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 32 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine or descarboethoxyloratadine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 54 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine or descarboethoxyloratadine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 55 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine or descarboethoxyloratadine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 253A in combination with an effective amount of an Hi receptor antagonist selected from: loratadine or descarboethoxyloratadine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 287 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine or descarboethoxyloratadine.
  • Another embodiment of this invention is directed to a method of treating: allergy, allergy-induced airway responses, and congestion comprising administering to a patient in need of such treatment an effective amount of Compound 320 in combination with an effective amount of an Hi receptor antagonist selected from: loratadine or descarboethoxyloratadine.
  • R 1 is preferably selected from:
  • (B) substituted aryl e.g., substituted phenyl
  • substituents on said substitued aryl are most preferably selected from: (1 ) halo (e.g., monohalo or dihalo), more preferably chloro or fluoro, even more preferably monochloro, dichloro, monofluoro or difluoro; or (2) alkyl, more preferably unbranched (i.e., straight chain, e.g., methyl) alkyl, even more preferably substituted alkyl, still more preferably alkyl substituted with halo (e.g., 1 , 2 or 3 halo atoms, such as CI or F), even still more preferably alkyl substituted with fluoro atoms, yet still more preferably trifluromethyl;
  • halo e.g., monohalo or dihalo
  • alkyl more preferably unbranched (i.e., straight chain, e.g., methyl) alky
  • heteroaryl most preferably a five or six membered heteroaryl ring, more preferably a six membered heteroaryl ring, and still more preferably pyridyl
  • heteroaryl rings include pyridyl, thienyl, pyrimidinyl, thiazolyl or pyridyl N- Oxide, most preferred heteroaryl rings are exemplified by
  • c is most preferably 0 or 1 , and when c is 1 then R 6 is most preferably halo, and when c is 1 then R 6 is more preferably fluoro.
  • R 3 is preferably selected from H, alkyl or halo substituted alkyl (e.g., fluoro substituted alkyl, such as -CH 2 CF 3 ), most preferably alkyl, more preferably methyl or ethyl, and still more preferably methyl.
  • M 2 is nitrogen.
  • n is preferably 2.
  • a is preferably 0 or 1 , and most preferably 0.
  • b is preferably 0 or 1 , and most preferably 0.
  • c is preferably 0 or 1 , and most preferably 0, and when c is 1 then R 6 is preferably halo, and when c is 1 R 6 is most preferably fluoro.
  • e is preferably 1-5.
  • M 3 and M 4 are preferably selected such that: (1 ) one is carbon and the other is nitrogen, or (2) both are nitrogen, with M 3 most preferably being carbon.
  • p is preferably 2.
  • Z is preferably Ci to C 3 alkyl, and most preferably
  • R 2 is preferably a six membered heteroaryl ring, most preferably pyridyl, substituted pyridyl, pyrimidinyl or substituted pyrimidinyl, more preferably pyridyl, pyridyl substituted with -NR 4 R 5 , pyrimidinyl or pyrimidinyl substituted with -NR 4 R 5 , still more preferably pyridyl, pyridyl substituted with -NH 2 (i.e., R 4 and R 5 are H), pyrimidinyl or pyrimidinyl substituted with -NH 2 (i.e., R 4 and R 5 are H), and even more preferably
  • R 3 is preferably H or alkyl, most preferably H or methyl.
  • R 4 is preferably H or lower alkyl, most preferably H or methyl, and more preferably H.
  • R 5 is preferably H, Ci to C 6 alkyl or-C(0)R 4 , most preferably H or methyl, and more preferably H.
  • R 12 is preferably alkyl, hydroxyl or fluoro, and most preferably H.
  • R 13 is preferably alkyl, hydroxyl or fluoro, and most preferably H.
  • Representative compounds of this invention include, but are not limited to:
  • representative compounds of this invention include, but are not limited to: Compounds 23, 30, 31 , 32, 33, 44, 45, 49, 50, 53, 54, 55, 59, 75, 76, 83, 88, 92, 99, 104, 110, 117, 128, 200, 201, 203-215, 217-241, 244-246, 246A, 247-253, 253A, 254-273, 275, 278, and 280-282, 317, 334 and 403.
  • Preferred compounds of this invention are selected from: Compound 23, 30, 31, 32, 33, 50, 53, 54, 55, 56, 57A, 59, 92, 212, 215, 218, 219, 220, 224, 225, 226, 227, 229, 233, 235, 237, 238, 246, 246A, 247, 248, 251, 253, 253A, 268-273, 275, 278-281, 287, 296, 301, 304-307, 309, 312, 314-318, 320-356, or 358-376.
  • Most preferred compounds of this invention are selected from: Compound 30, 31, 32, 33, 54, 55, 56, 57A, 225, 237, 246A, 253A, 273, 280, 287, 296, 301, 304-307, 309, 312, 314-318, 320-348, 350-356, 359-372, and 374-376.
  • one embodiment of this invention is directed to Compound 32.
  • Another embodiment of this invention is directed to Compound 54.
  • Another embodiment of this invention is directed to Compound 55.
  • Another embodiment of this invention is directed to Compound 253A.
  • Another embodiment of this invention is directed to Compound 287.
  • Another embodiment of this invention is directed to Compound 320.
  • the more preferred compound of this invention is the compound of the formula:
  • This invention also provides a compound of the formula:
  • This invention also provides a compound of the formula:
  • Compounds 32A and 32B can also be used in the pharmaceutical compositions, and the methods of this invention.
  • One synthetic route involves a linear sequence of reactions to obtain the desired compounds, i.e.,
  • R 1 is aryl, heteroaryl, or alkyl
  • X a ketone, oxime or substituted oxime
  • Z CHR
  • R 2 is heteroaryl
  • n and m 2 (n and m being 1 can also be prepared by this procedure).
  • PG represents a protecting group
  • M represents Li or MgX 1 (wherein X 1 represents CI, Br or I).
  • a Grignard reagent 2 is reacted with an electrophile such as the aldehyde 1 or the nitrile 4 in a suitable aprotic solvent such as THF or ether.
  • PG represents a protecting group. Suitable protecting groups include, for example, methyl and benzyl.
  • Alcohol 3 can be oxidized by a number of different reagents to give 8.
  • the amide 7 can be reacted with an organometallic reagent to directly give the ketone 8.
  • Suitable protecting groups for this step include carbamates or amides or the like.
  • examples of protecting groups in equation 3 include t-BOC, CBZ and FMOC.
  • the protecting group, PG is a methyl group
  • said methyl group can be removed using a reagent such as a chloroformate;
  • PG is a carbamate, such as, a t-Boc group, it can be removed by dilute acid, such as, for example HCI.
  • Amine 9 can be coupled to acid 10 using a number of methods well known in the art such as DCC or PyBOP.
  • the acid 10 can be activated by conversion to the acid chloride or mixed anhydride and then reacted with the amine 9 to give 11.
  • Suitable protecting groups for 10 include, for example, t-Boc.
  • Compound 11 in which the protecting group is a t-Boc can be deprotected under acidic conditions such as HCI in dioxane or TFA in CH 2 CI 2 to give the amine 12.
  • R 30 in 13 represents an alkyl group.
  • E is a leaving group, halogen, or E is a carbonyl group.
  • Compound 14 can be prepared by reacting amine 12 with 13.
  • 12 and 13 are combined in a solvent such as CH 2 CI 2 in the presence of molecular sieves.
  • a reducing agent such as NaBH(OAc) 3 is added.
  • E is a halogen atom such as CI or Br
  • 12 and 13 are combined in a solvent, such as DMF, in the presence of a tertiary amine base to give the product 14.
  • Suitable protecting groups include, for example t-Boc, phthaloyl.
  • Compound 14 can be converted to the oxime 15 by combining 14 with H 2 NOR 3 -HCI in pyridine at a temperature of 40 - 60°C.
  • 14 can be combined with H 2 NOR 3 »HCI in an alcoholic solvent in the presence of a base, such as, NaOAc, to give 15.
  • R 30 is as defined above (i.e., alkyl).
  • R 35 is methyl or ethyl.
  • Compound 17 is synthesized in the same manner as that described for the synthesis of compound 14.
  • M represents Li, Na, or K.
  • Compound 17 is saponified in a mixed solvent, such as, for example: (1) EtOH or MeOH and water, or (2) THF, water, and MeOH, using an alkali metal base such as LiOH or NaOH at a temperature of from 50 to 100°C to give the salt 18.
  • a mixed solvent such as, for example: (1) EtOH or MeOH and water, or (2) THF, water, and MeOH, using an alkali metal base such as LiOH or NaOH at a temperature of from 50 to 100°C to give the salt 18.
  • Reaction mixture was then stirred for 40 min at room temperature after which 22.68 g (107 mmol) of NaBH(OAc) 3 was introduced. Reaction mixture was stirred overnight at room temperature, neutralized with saturated aqueous NaHCO 3 , diluted with water and extracted with CH 2 CI 2 . Concentration and flash chromatography (0 - 4% sat.
  • compound 32 can preferably be prepared from compound 5A in a manner similar to that described for compound 287 in Step 3 of Example 28.
  • Example 7 Step 4 Example 1 , Step 4, and Example 6, Steps 6 and 7, 64 (0.73 g, 3 mmol) was converted to 65 (0.1 g).
  • step 7 81 (0.36 g, 0.53 mmol; synthesized in the same manner as compound 30) was converted to 82 (0.34 g, 63%).
  • step 4 86 (3.1 g) was converted to 87 ( 2.0 g, yield: 68% ).
  • step 3 In a manner similar to that described in Example 7, step 3, 4, 5, and 6, 87 was converted to 88.
  • step 3 95 (5.34 g, 12.11 mmol) was converted to 96 (4.71 g, 75%).
  • step 4 96 (3.7 g, 8.43 mmol) was converted to 97 (3.08 g, >100%) which was used as is in the next step.
  • steps 4, 5, and 6, 125 was converted to 126.
  • step 5 126 was converted to 127.
  • step 7 127 was converted to 128.
  • the isomers 246A and 253A, below, can be separated from 246 and 253, respectively, above, by techniques well known to those skilled in the art.
  • Example 13 in 40 ml of CH 2 CI 2 was added 1.36 mL (10.58 mmol) of ethyl isonipecotate and 2 drops of acetic acid. The mixture was stirred for 40 min. at room temperature, after which 2.58 g (12.17 mmol) of NaBH(OAc) 3 was added. The reaction mixture was then stirred for 20 h at room temperature, diluted with aqueous NaOH (pH adjusted to 11 ) and extracted with CH 2 CI 2 .
  • 3,4 Pyridine-dicarboximide 288 (10.0 g; 67.5 mmoles) was dissolved in 162 g. of 10% aqueous NaOH and the solution was cooled to an internal temperature of 7 °C in an ice-salt bath. Bromine (3.6 ml; 70 mmoles) was added dropwise. After the addition, the solution was heated for 45 minutes at a bath temperature of 80-85 °C. The yellow solution was then cooled to an internal temperature of 37 °C, then 17 ml of glacial acetic acid were added dropwise to a pH of 5.5. The resulting mixture was saved overnight in a refrigerator. The solid formed was filtered and washed with 5 ml of water and 5 ml of methanol. The reaction yielded 6.35 g. of product 289 melting at 280-285 °C (decomp.).
  • Solid Compound 289 (9.5 gr.; 69 mmoles) was carefully added in three aliquots to a slurry of lithium aluminum hydride (9.5 gr.; 250 mmoles) in 200 ml of dry tetrahydrofuran. The resulting hot mixture was stirred at room temperature for two days. After cooling in an ice bath, the reaction was quenched with very careful sequential dropwise addition of 10 ml of water, followed by 10 ml of 15% aqueous NaOH, then by 30 ml of water. The resulting solid was filtered through a pad of Celite and washed several times with THF. The oil obtained after evaporation of the solvent, solidified on standing.
  • Manganese dioxide (29 gr.; 334 mmoles) was added, in one portion, at room temperature, to a suspension of 3-amino-4-hydroxymethyl pyridine 290 (5.0 gr.; 40.3 mmoles) in 500 ml of chloroform with good stirring. After two days, the solid is filtered through a pad of Celite and washed with chloroform. Removal of the solvent using reduced pressure yielded 4.2 grams (85%) of Compound 291 as a yellow solid.
  • 4-(2-pyridinylcarbonyl)piperidine 28 (Step 4 in Example 6) (0.3 gr.; 1.58 mmoles), lithium 1-[(3-amino-4-pyridinyl)methyl] -4-piperidinecarboxylate 293 (0.34 gr.; 1.4 mmoles), DEC (0.38 gr.; 2.0 mmoles), and HOBT ( 0.27 gr.; 2.0 mmoles) were stirred at room temperature in 10 ml of dry DMF for two days. The reaction was quenched with 50 ml. of 0.5 N aqueous NaOH, then the solution was extracted with dichloromethane. The combined extracts were washed with brine and dried over anhydrous sodium sulfate.
  • Compound 447 is prepared from a compound of formula:
  • R 50 is an alkyl or aryl group, f is 0 to 4, R 51 is an alkyl group, and Q is a halo group, wherein said alkyl, aryl, and halo groups are as defined above.
  • Compound 447 can be prepared from 448 and 449 by: (a) converting the compound of formula 449 into its Grignard form
  • This preparation can be represented as follows:
  • step 1 a 4-halo-1- alkylpiperidine (or a 4-halo-1-arylpiperidine) is converted to its Grignard analog (449A) by reacting with magnesium.
  • the reaction is performed generally at temperatures of about -10° C to reflux.
  • hydrocarbon solvent such as, for example, toluene, xylene, chlorobenzene, dichlorobenzene and the like, or mixture of hydrocarbons listed above with an ether, such as, for example, a C5-C12 alkyl ether, 1 ,2-dimethoxyethane, 1.2-diethoxyethane, diglyme, 1,4-dioxane, tetrahydrofuran and the like are suitable for this reaction.
  • the solution is cooled to around -10° C to about 10° C and then reacted with a suitable 2-cyanopyridine (448), for about 10-120 minutes.
  • 2-cyanopyridine examples include 2-cyanopyridine, 4-methyl-2- cyanopyridine, 4-ethyl-2-cyanopyridine, 4-phenyl-2-cyanopyridine, and the like. Preferred are 2-cyanopyridine and 4-methyl-2-cyanopyridine.
  • the Grignard compound is used generally in about 1-4 molar equivalents with respect to the compound of formula 448, preferably in about 1-3 molar equivalents and typically in about 1.5-2.5 molar equivalents.
  • the product of formula 450 may be isolated by procedures well known in the art, such as, for example, treatment with an acid (e.g. HCI), " preferably in a suitable solvent (e.g., tetrahydrofuran or ethyl acetate).
  • the product of Formula 450 may then be reacted with an alkyl chloroformate in the next step.
  • Suitable alkyl chloroformates are, for example, methyl chloroformate, ethyl chloroformate, propyl chloroformate, and the like, with the preferred being methyl chloroformate or ethyl chloroformate.
  • a hydrocarbon solvent such as, for example, toluene, xylene, chlorobenzene, dichlorobenzene and the like, or mixture of a hydrocarbons listed above with an ether such as, for example, a C5-C12 alkyl ether, 1 ,2-dimethoxyethane, 1.2-diethoxyethane, diglyme, 1,4-dioxane, tetrahydrofuran and the like is suitable for this reaction.
  • the reaction is generally performed at about 25-100°C, preferably about 40-90°C and typically about 50-80°C, for about 1-5 hours.
  • the generated acid is washed off and the product of formula 452 may be isolated by organic solvent extraction.
  • the compound of Formula 452 may then be converted into its acid salt by treatment with an acid such as, for example, sulfuric acid, hydrochloric acid, trifluoroacetic acid and the like, generally in a solvent at temperatures between ambient and reflux of the solvent.
  • Suitable solvents include hydrocarbons such as, for example, toluene, xylene, chlorobenzene, dichlorobenzene and the like.
  • the salt generally has 2 moles of acid to a mole of compound 452.
  • the compound of formula 453 may then be converted to an alkyloxime of formula 454 by reacting it with an alkoxyamine (or its hydrochloride), usually in aqueous solution form.
  • alkoxyamines are, for example, methoxyamine, ethoxyamine and the like. Methoxyamine is preferred.
  • the alkoxyamine (or its hydrochloride) is employed generally in about 1 to about 4 molar equivalents, preferably in about 1 to about 3 molar equivalents, and typically in about 1 to about 2 molar equivalents.
  • the reaction is catalyzed by a weak acid such as, for example, acetic acid, formic acid and the like, or mixtures thereof.
  • a cosolvent such as, for example, methanol, ethanol, isopropanol, n-butanol and the like, or mixtures thereof may be added.
  • the product of formula 454, after work-up, is a mixture of the Z- and the E-isomers, whose ratio may be analyzed for its stereochemical make-up, using techniques well known in the art such as, for example, HPLC. Treating the compound of formula 454 with a strong acid under the reaction conditions described below isomerizes the mixture of the Z and the E-isomers into predominantly the E-isomer.
  • the compound of formula 454 may be dissolved in a solvent such as, for example, ethanol, methanol, isopropanol, n-butanol and the like, ether such as methyl tert-butyl ether, tetrahydrofuran and the like, hydrocarbon such as, for example, heptane, hexane, toluene and the like, nitrile such as, for example, acetonitrile, benzonitrile and the like, or mixtures of such solvents.
  • a strong acid such as, for example, HCI, HBr, H 2 SO 4 and the like, at temperatures in the range of 20 to 100°C for about 1-20 hours.
  • the acid is employed generally in about 1 to about 8 molar equivalents, preferably in about 1 to about 6 molar equivalents, and typically in about 2 to about 4 molar equivalents.
  • the products of the various steps in the process described above may be isolated and purified by conventional techniques such as, for example, filtration, recrystallization, solvent extraction, distillation, precipitation, sublimation and the like, as is well known to those skilled in the art.
  • the products may be analyzed and/or checked for purity by conventional methods such as, for example, thin layer chromatography, NMR, HPLC, melting point, mass spectral analysis, elemental analysis and the like, well known to those skilled in the art.
  • the source of the H 3 receptors in this experiment was guinea pig brain.
  • the animals weighed 400-600 g.
  • the brain tissue was homogenized with a solution of 50 mM Tris, pH 7.5.
  • the final concentration of tissue in the homogenization buffer was 10% w/v.
  • the homogenates were centrifuged at 1 ,000 x g for 10 min. in order to remove clumps of tissue and debris.
  • the resulting supernatants were then centrifuged at 50,000 x g for 20 min. in order to sediment the membranes, which were next washed three times in homogenization buffer (50,000 x g for 20 min. each).
  • the membranes were frozen and stored at -70°C until needed.
  • 253, 253A, 254-273, 275, 278, 280-282, 287, 296, 301-310, and 312-379 had a Ki within the range of about 0.25 to about 370nM.
  • 318, 320-356, and 358-376 had a Ki within the range of about 0.25 to about 33nM.
  • More preferred compounds 54, 55, 253A, 287, 320 had a Ki within the range of about 1.05 to about 9.75nM.
  • inert, pharmaceutically acceptable carriers can be either solid or liquid.
  • Solid form preparations include powders, tablets, dispersible granules, capsules, cachets and suppositories.
  • the powders and tablets may be comprised of from about
  • Suitable solid carriers are known in the art, e.g. magnesium carbonate, magnesium stearate, talc, sugar or lactose. Tablets, powders, cachets and capsules can be used as solid dosage forms suitable for oral administration. Examples of pharmaceutically acceptable carriers and methods of manufacture for various compositions may be found in A. Gennaro (ed.), Remington's Pharmaceutical Sciences, 18th Edition, (1990), Mack Publishing Co., Easton, PA.
  • Liquid form preparations include solutions, suspensions and emulsions. As an example may be mentioned water or water-propylene glycol solutions for parenteral injection or addition of sweeteners and opacifiers for oral solutions, suspensions and emulsions. Liquid form preparations may also include solutions for intranasal administration.
  • Aerosol preparations suitable for inhalation may include solutions and solids in powder form, which may be in combination with a pharmaceutically acceptable carrier, such as an inert compressed gas, e.g. nitrogen.
  • a pharmaceutically acceptable carrier such as an inert compressed gas, e.g. nitrogen.
  • solid form preparations which are intended to be converted, shortly before use, to liquid form preparations for either oral or parenteral administration.
  • liquid forms include solutions, suspensions and emulsions.
  • the compounds of the invention may also be deliverable transdermally.
  • the transdermal compositions can take the form of creams, lotions, aerosols and/or emulsions and can be included in a transdermal patch of the matrix or reservoir type as are conventional in the art for this purpose.
  • the compound is administered orally.
  • the pharmaceutical preparation is in a unit dosage form.
  • the preparation is subdivided into suitably sized unit doses containing appropriate quantities of the active component, e.g., an effective amount to achieve the desired purpose.
  • the quantity of active compound in a unit dose of preparation may be varied or adjusted from about 1 mg to about 150 mg, preferably from about 1 mg to about 75 mg, more preferably from about 1 mg to about 50 mg, according to the particular application.
  • the actual dosage employed may be varied depending upon the requirements of the patient and the severity of the condition being treated. Determination of the proper dosage regimen for a particular situation is within the skill of the art. For convenience, the total daily dosage may be divided and administered in portions during the day as required.
  • a typical recommended daily dosage regimen for oral administration can range from about 1 mg/day to about 300 mg/day, preferably 1 mg/day to 75 mg/day, in two to four divided doses.
  • the methods of this invention described above using a compound of Formula I also include the use of one or more compounds of Formula I, and the methods of this invention described above using a compound of Formula I in combination with an Hi receptor antagonist also include the use of one or more compounds of Formula I in combination with one or more Hi receptor antagonists.

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Abstract

L'invention concerne de nouveaux composés représentés par la formule (I) ainsi que des compositions pharmaceutiques renfermant lesdits composés. L'invention concerne également des méthodes permettant de traiter différents états et maladies tels que, par exemple, l'allergie, les réponses des voies aériennes induites par une allergie, et la congestion (par exemple la congestion nasale) à l'aide de ces composés. L'invention concerne enfin des méthodes permettant de traiter différents états et maladies, tels que par exemple, l'allergie, les réponses des voies aériennes induites par une allergie, et la congestion (par exemple la congestion nasale) à l'aide des composés représentés par la formule (I) associés à un antagoniste de récepteur H1.
EP01983968A 2000-10-17 2001-10-15 Nouveaux composes non imidazole Expired - Lifetime EP1326858B1 (fr)

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CN1803795B (zh) 2010-05-12
NZ524857A (en) 2004-12-24
DK1326858T3 (da) 2006-05-08
EP1326858B1 (fr) 2005-12-14
EP1571145A1 (fr) 2005-09-07
DK1571145T3 (da) 2009-05-04
HK1081182A1 (en) 2006-05-12
EP1571145B1 (fr) 2009-01-14
JP4093859B2 (ja) 2008-06-04
IL155031A0 (en) 2003-10-31
CA2424664C (fr) 2008-12-23
WO2002032893A3 (fr) 2002-08-22
US20080119487A1 (en) 2008-05-22
US7300941B2 (en) 2007-11-27
NO20031744D0 (no) 2003-04-15
US6720328B2 (en) 2004-04-13
ATE420863T1 (de) 2009-01-15
JP2007145866A (ja) 2007-06-14
DE60115937D1 (de) 2006-01-19
CA2424664A1 (fr) 2002-04-25

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